A nurse is caring for four clients on the urology unit. Which of the following data gathered by the nurse leads them to suspect renal calculi?

A. The client admitted to the hospital who has clinical findings of periorbital edema, dark frothy urine, and elevated blood pressure.: These manifestations are characteristic of glomerulonephritis, where inflammation of the glomerular basement membrane allows proteins and blood to leak into the urine. Periorbital edema results from the subsequent decrease in oncotic pressure and fluid retention. These findings indicate a glomerular filtration issue rather than the presence of calculi. B. The client admitted to the hospital who has clinical findings of severe flank pain, nausea, and vomiting.: Renal calculi, or kidney stones, typically cause sudden, excruciating pain as they migrate through the ureter, often referred to as renal colic. Nausea and vomiting occur as a sympathetic response to the intense visceral pain. These symptoms are classic indicators of an obstructive process within the urinary tract. C. The client admitted to the hospital who has clinical findings of urinary urgency, weak urine stream, and dysuria.: These symptoms suggest a lower urinary tract issue, such as cystitis or benign prostatic hyperplasia, rather than renal stones. A weak stream and urgency reflect urethral obstruction or bladder wall irritability. While stones can cause dysuria, the absence of flank pain makes calculi less likely in this scenario. D. The client admitted to the hospital who has clinical findings of polyuria, nocturia, proteinuria, and a palpable kidney mass.: This clinical profile is highly suggestive of polycystic kidney disease or a renal neoplasm. Proteinuria and nocturia reflect chronic, structural damage to the nephrons rather than an acute obstructive event. A palpable mass is a structural finding that is not typical of simple nephrolithiasis.